Mazon Creek Fossil Fauna
Trace Fossils
Coprolites and Trails
Coprolites
Fish coprolite - Milwaukee Public Museum P28708
|
|
|
Three specimens of fish coprolite, Pit 11, Braidwood, IL - A.Young collection
|
Above and left: Pit 11, Braidwood, IL - A.Young collection
|
Fish coprolite, containing tiny bivalves, Mazon River, Morris, IL - A.Young collection
Fish coprolite, mold and cast, Mazon River, Morris, IL - A.Young collection
An exceptionally large fish coprolite, Pit 2, Wilmington, IL - A.Young collection
Shark Coprolites
|
|
Shark coprolite, showing characteristic spiral shape - Lauer Foundation collection
|
|
Shark coprolite, showing characteristic spiral shape, Pit 3, Wilmington, IL
Trails and Burrows
Planolites isp. - Bivalve Burrow Trails
Planolites isp. with Mazonomya mazonensis - R.Rock collection